LS1 swapped E30 - mpg

[kristov]

What do you guys average on mpg highway cruising around 60 mph?

[Jack89i]

I've heard of ls e30s getting up to 30 mpg on the highway. Basically idling with that T56


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[HennaE30]

I'd assuming they'd get relatively good mileage because the motor doesn't have to work at all.


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[jalopi]

Depends on how close to stock your car is. Should be around the level of what a korvette, kuhmero or trans am get

[Gertech]

I haven't been able to run a full tank through mine without flogging it, but traveling to Baltimore from north of Philly and back yielded 26 mpg cruising at 80-85 on the highway. GTO T56 (overdrive not as tall as Camaro T56) and 2.93 diff. Just swapped to a 3.25 diff but I still think 30 is attainable if you cruised at 60 in 6th.

[kristov]

I haven't been able to run a full tank through mine without flogging it, but traveling to Baltimore from north of Philly and back yielded 26 mpg cruising at 80-85 on the highway. GTO T56 (overdrive not as tall as Camaro T56) and 2.93 diff. Just swapped to a 3.25 diff but I still think 30 is attainable if you cruised at 60 in 6th.

Thank you! :)

Seems like 26 is like the stock Camaro SS.

http://www.fueleconomy.gov/mpg/MPG.do?action=mpgData&vehicleID=17417%20&browser=true&details=on

Do you have a stock tune?

[Gertech]

Yeah man, not bad at all. I'd say I've averaged about 20 on all the tanks, combining regular driving and whooping its ass haha. It's a relatively stock tune, I still want to get it dyno tuned. I bought the PCM from a guy in New Jersey who builds wire harnesses and sells PCMs to go with them. He refurbishes the PCMs and flashes them with a base tune. PSI Conversion is the company.

[carlb]

I've averaged about 20 myself. That's partly due to a very rich tune.